Watch case



FIG. 1 is a front perspective view of a watch case showing my new design:

FIG. 2 is a right side elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a front elevation thereof;

FIG. 5 is a left side elevational view thereof; and,

FIG. 6 is a rear elevation thereof.

The bottom plan view is a mirror image of the top plan view illustrated in FIG. 3. The broken lines in FIGS. 1 through 5 are for illustrative purposes only and do not form part of the claimed design. 

The ornamental design for a watch case, as shown and described. 